Features: Suitable for kids and adults, Whether you are a treasure hunter or a beginner, you can enjoy the fun of metal detection. The installation is simple and convenient, you can complete the assembly by yourself, just connect several parts together. When the metal detector detects a metal object it will beep and the LCD information screen icon will stop rotating. The text message will read "METAL FOUND." High sensitivity and high accuracy, give you a better using experience. Portable design, easy to carry and store, you can put it by your side and take it to different places to use. Specifications: Material: ABS Power: 1 * 9V battery (NOT INCLUDED) Working frequency: 22KHz Current: Standby: 10mA, Max: 30mA Working Voltage: 7V-9V Sensitivity: one coin: 100~300mm Stretch length: 15-27 inches Package size: 370 * 310 * 75mm / 14.6 * 12.2 * 3.0in Package weight: 550g / 1.2lb Packing list: 1 * Metal Detector Set